package demo3;

public class KeyBoard implements IUSB{

    @Override
    public void openDevice() {
        System.out.println("打开键盘！");
    }
    public void inPut() {
        System.out.println("键盘输入");
    }
    @Override
    public void closeDevice() {
        System.out.println("关闭键盘！");
    }
}
